Question:
Complete the given equations :
(i) $Cu + 8HNO_3 \to 3Cu(NO_3)_2 +$ $+ 4H_2O$
(ii) $4Zn +10HNO_3 \to 4Zn(NO_3)_2 + 5H_2O+$
(iii) $I_2 + 10HNO_3 \to$ $+ 10NO_2 + 4H_2O$
Complete the given equations :
(i) $Cu + 8HNO_3 \to 3Cu(NO_3)_2 +$ $+ 4H_2O$
(ii) $4Zn +10HNO_3 \to 4Zn(NO_3)_2 + 5H_2O+$
(iii) $I_2 + 10HNO_3 \to$ $+ 10NO_2 + 4H_2O$
Updated On: Jul 6, 2022
- a
- b
- c
- d
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The Correct Option is B
Solution and Explanation
(i) $ {3Cu +8HNO3_{(dil).}->3Cu(NO3)2}+$ $\underset{\text{(W)}}{ {2NO}} {+4H2O}$
(ii) $ {4Zn +}$$\underset{\text{(very dilute)}}{ {10HNO3}}$ $ {(5\%)-> 4Zn(NO3)2 +5H2O \,+}$ $\underset{\text{(X)}}{ {N2O}}$
(iii) $ {I2 +10HNO3 ->}$ $\underset{\text{(Y)}}{ {2HIO3}}$$ {+\,10NO2 +4H2O}$
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family